Scaffold unit



FIG. 1 is a perspective view of a scaffold unit embodying my new design;

FIG. 2 is a side elevational view of my scaffold unit, the scaffoldplanking being shown in phantom lines for environmental purposes onlyand forms no part of the claimed design;

FIG. 3 is a rear elevational view thereof taken from the left-hand endof FIG. 2; and,

FIG. 4 is a top plan view thereof.

The ornamental design for a scaffold unit, as shown and described.